Thunder Races
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Thunder Races
Thunder Races is a UK trail and ultra running series that creates welcoming, fully supported events. The series stages multiple events each year with fully marked routes and generous cut-offs so runners do not need to navigate alone.
Events feature high energy volunteers, rave stations, and an inclusive atmosphere. Courses use waymarking and support stations so runners can focus on running rather than navigation or being left alone.
The routes are set on runnable countryside terrain and mix rural paths, villages, and open country. Organisers describe the courses as mentally and physically manageable, with options that suit runners stepping up in distance as well as those new to trail running.
Event examples:
- 25 km Harrold Odell Trail Race (13 March 2027)
- 50 km Harrold Odell Trail Race (13 March 2027)
- 81 miles Pilgrim's Reckoning, a circular ultra on the Bunyan Trail in Bedfordshire (12 September 2026)
Pilgrim's Reckoning is an 81 mile circular ultra following the official Bunyan Way markers throughout. The full loop is waymarked and must be completed within 24 hours, covering a mix of rural paths, villages, and open countryside. Visit the organization's website for the most recent information.
